We're working on this issue and as I wrote in my emails, about middle of this week I'll send a test version to you. Note that this issue does not occur on any of our Macs (we have High Sierra installed too). So we will need your assistance to make progress here.

Generally speaking, most issues are easy to reproduce and thus can often be fixed quickly. If something only happens on few machines, however, it typically takes longer. Thank you in advance for your patience